NVIDIA GeForce 9800 GX2 vs AMD Radeon HD 6850

VS

NVIDIA GeForce 9800 GX2

AMD Radeon HD 6850

We compared two Desktop platform GPUs: 512MB VRAM GeForce 9800 GX2 and 1024MB VRAM Radeon HD 6850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Released 2 years and 7 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (128.0GB/s vs 64.00GB/s)

832 additional rendering cores

Lower TDP (127W vs 197W)

Score

Benchmark

FP32 (float)

GeForce 9800 GX2

0.384 TFLOPS

Radeon HD 6850 +287%

1.488 TFLOPS

GeForce 9800 GX2

VS

Radeon HD 6850

Graphics Card

Mar 2008

Release Date

Oct 2010

GeForce 9

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1000 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

256bit

Memory Bus

256bit

64.00GB/s

Bandwidth

128.0GB/s

Render Config

-

Compute Units

12

16

SM Count

-

128

Shading Units

960

64

TMUs

48

16

ROPs

32

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

24.80 GPixel/s

38.40 GTexel/s

Texture Rate

37.20 GTexel/s

-

384.0 GFLOPS

FP32 (float)

1488 GFLOPS

-

Board Design

197W

TDP

127W

450 W

Suggested PSU

300 W

2x DVI 1x HDMI

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

G92

GPU Name

Barts

G92-450-A2

GPU Variant

Barts PRO (215-0798006)

Tesla

Architecture

TeraScale 2

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.754 billion

Transistors

1.7 billion

324 mm²

Die Size

255 mm²

Graphics Features

11.1 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

5.0

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